SEAGATE TECHNOLOGY, INC.
Technical Support Bulletin Board
408/438-8771  [300-9600 HST, MNP 3/5, N-8-1]
(C)opyright  1990

Swift ST-506            ST-1150R (94355-150)
     ÚÄÄÄ\
     ³ O ³  5
     ³ O ³  G
     ³ O ³  G          1 Terminator             ÚÄÄÄ Located on side
     ³ O ³ 12          ÚÄÄÄÄÄÄÄÄÄÄ¿       ÚÄÄÄÄÄÁÄÄÄÄÄ¿
     ÀÄÄÄ/             ÀÄÄÄÄÄÄÄÄÄÄÙ        o o o o o o
     ÍÍÍÍÍÍÍÍ ÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍ      o o o o o o
      ÀData Cable    ÀController Cable     1 2 3 4 R Ext
                                           ÄÄÄÂÄÄÄ ³ ³
                                              ³    ³ ³
                                              ³    ³ ³
                         Drive Selects  ÄÄÄÄÄÄÙ    ³ ³
                         Radial Select ÄÄÄÄÄÄÄÄÄÄÄÄÙ ³
                         External spindle clock  ÄÄÄÄÙ

                             ST-1150R
                          94355-150 Swift

       UNFORMATTED CAPACITY (MB) ________________150
       FORMATTED CAPACITY (26 SECTORS) (MB) _____128
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________9,648
       CYLINDERS ________________________________1,072
       HEADS ____________________________________9
       DISCS ____________________________________5
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL
       TRANSFER RATE (mbits/sec) ________________7.5
       INTERFACE ________________________________ST412
       TPI (TRACKS PER INCH) ____________________1,350
       BPI (BITS PER INCH) ______________________21,030
       AVERAGE ACCESS (ms) ______________________15
       SINGLE TRACK SEEK (ms) ___________________4
       MTBF (power-on hours) ____________________70,000
       POWER REQUIREMENTS: +12V START-UP (amps) _2.5
                           +12V TYPICAL (amps) __0.7
                           +5V START-UP (amps) __0.75
                           +5V TYPICAL (amps) ___0.4
                           TYPICAL (watts) ______10
                           MAXIMUM (watts) ______12
       BUFFERED STEP PULSE RATE (micro sec) _____6-200
       WRITE PRECOMP (cyl) ______________________300
       REDUCED WRITE CURRENT (cyl) ______________N/A (1073)
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING 
   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP 
   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)